In light of a growing emphasis on student-centred learning approaches, feedback is viewed as an activity that has potential to facilitate higher education students' explorations of knowledge contents and practices. However, research shows that feedback does not always lead to the expected student engagement. This qualitative study proposes a…

We propose to reconsider the well-known experiment about the interference of white light from a thin soap film by adopting as an illuminating source the RGB triad produced by a LED projector. The interference pattern shows up in a particularly fascinating way and it contains direct, essential information about both the wave nature of light and of…

This paper entitled as "Impact of E-Content on Learning Chemistry at Higher Secondary Level" is tried to test the impact of the multimedia courseware in studying chemistry at the XI standard level by picking a sample of 40 students by containing 20 each with control and experimental group by adopting pre-test and post-test control group…

The comparative analysis of different meanings of Chemistry is carried out, taking in account philosophical, didactic, psychological and socio-cultural aspects. The issue is discussed in terms of the concurrent existence of two different subsystems referred both to Science and Education which can be found in presentations of chemistry knowledge.…

Glyphosate (N-(phosphonomethyl)glycine) is the most widely used herbicide on earth. A simple assay to quantify glyphosate concentrations in environmental samples was developed as part of an interdisciplinary effort linking introductory laboratory courses in chemistry, biology, and microbiology. In this 3 h laboratory experiment, students used…

Students collect magnetic susceptibility data to verify that Hund's rule correctly predicts electronic configurations. Systems examined include three commercially available lanthanide(III)-containing complexes of the form M(acac)[subscript 3](H[subscript 2]O)[subscript 2] (where M = La(III), Nd(III), and Gd(III), and acac denotes the [CH[subscript…

A cylinder rolling down an inclined board is a commonly seen and interesting object to study and it is also easy to experiment with and model. Following what has become a popular practice, we use smartphones to measure the angular acceleration of a cylinder rolling down a plane of different inclining angles. The friction force deviates from the…

The purpose of this study was to compare instruction effectiveness between a regional approach and a systems approach in teaching the musculoskeletal system to sophomore-level anatomy and physiology students. Exam grades from two consecutive fall semesters were compared. Laboratory materials for the second and third exams were presented using a…

The quantum mechanics of a simplified Pöschl-Teller potential in one dimension is analyzed at an elementary level. The number of bound states of this potential is determined by a parameter "l" characterizing the depth of the potential energy. The resulting collection of potentials with varying depth, as well as their ground state…

Proficiency with instrumental analysis via GC-MS is an important skill for chemistry students. The application of analytical techniques and fundamental theoretical principles to real-world problems can be valuable learning exercises for undergraduates which can also improve their analytical thinking skills. Xylitol is generally considered safe for…

Open access to research data is one of the key themes of current science development concepts and relevant R & D strategies at least in Europe. A systemic change in the modus operandi of science and research should lead to so-called Open Science. The presented paper questions the extent to which the Open Science concept is reflected in the…

Spatial skills have a known beneficiary role in STEM students' academic success. This paper explores data relating to the role of spatial skills in electrical engineering problem solving which is a relatively under researched area. Data indicate a significant association between electrical engineering problem solving and spatial skills and a…

An undergraduate organic chemistry laboratory experiment that provides an introduction to the concepts and practices of photoredox catalysis is reported. While undergraduate-level photochemistry experiments typically place emphasis on analytical properties of catalysts rather than synthetic applications, this experiment showcases the power and…

A novel laboratory curriculum is presented, developed around some common tasks of a laboratory researcher in chemistry: purification, synthesis, and measurement. The capstone of the sequence is an integrated laboratory, leading to a more independent research experience. Students who have completed this laboratory curriculum appear to perform…

To introduce the randomness of a physical process to students, a chaotic pendulum experiment was opened in East China University of Science and Technology (ECUST) on the undergraduate level in the physics department. It was shown chaotic motion could be initiated through adjusting the operation of a chaotic pendulum. By using the data of the…